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<a href="Scientific-module.html">Package Scientific</a> ::
<a href="Scientific.DistributedComputing-module.html">Package DistributedComputing</a> ::
<a href="Scientific.DistributedComputing.MasterSlave-module.html">Module MasterSlave</a> ::
Class SlaveProcess
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class SlaveProcess</h1><p class="nomargin-top"></p>
<pre class="base-tree">
object --+
|
<strong class="uidshort">SlaveProcess</strong>
</pre>
<hr />
<p>Slave process in a master-slave setup</p>
<p>A concrete slave process in a program is implemented by subclassing
this class and adding the methods that handle the computational tasks.
Such a method has the name "do_" followed by the tag of the
computational task. The process is then launched by calling the method
"start".</p>
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<td><span class="summary-sig"><a href="Scientific.DistributedComputing.MasterSlave.SlaveProcess-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">label</span>,
<span class="summary-sig-arg">master_host</span>=<span class="summary-sig-default">None</span>,
<span class="summary-sig-arg">watchdog_period</span>=<span class="summary-sig-default">120.0</span>)</span><br />
x.__init__(...) initializes x; see x.__class__.__doc__ for signature</td>
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<td><span class="summary-sig"><a name="processParameter"></a><span class="summary-sig-name">processParameter</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">parameter</span>)</span></td>
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<td><span class="summary-sig"><a name="start"></a><span class="summary-sig-name">start</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">namespace</span>=<span class="summary-sig-default">None</span>)</span><br />
Starts the slave process.</td>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="terminationTest"></a><span class="summary-sig-name">terminationTest</span>(<span class="summary-sig-arg">self</span>)</span></td>
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<td><span class="summary-sig"><a name="watchdogThread"></a><span class="summary-sig-name">watchdogThread</span>(<span class="summary-sig-arg">self</span>)</span><br />
This method is run in a separate thread that pings the master process
regularly to signal that it is still alive.</td>
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<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__delattr__</code>,
<code>__getattribute__</code>,
<code>__hash__</code>,
<code>__new__</code>,
<code>__reduce__</code>,
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<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__class__</code>
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
<span class="sig-arg">label</span>,
<span class="sig-arg">master_host</span>=<span class="sig-default">None</span>,
<span class="sig-arg">watchdog_period</span>=<span class="sig-default">120.0</span>)</span>
<br /><em class="fname">(Constructor)</em>
</h3>
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>
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<p>x.__init__(...) initializes x; see x.__class__.__doc__ for
signature</p>
<dl class="fields">
<dt>Parameters:</dt>
<dd><ul class="nomargin-top">
<li><strong class="pname"><code>label</code></strong> (<code>str</code>) - the label that identifies the task manager</li>
<li><strong class="pname"><code>master_host</code></strong> (<code>str</code> or <code>NoneType</code>) - If <code>None</code> (default), the task manager of the master
process is located using the Pyro name server. If no name server
is used, this parameter must be the hostname of the machine on
which the master process runs, plus the port number if it is
different from the default (7766).</li>
<li><strong class="pname"><code>watchdog_period</code></strong> (<code>int</code> or <code>NoneType</code>) - the interval (in seconds) at which the slave process sends
messages to the manager to signal that it is still alive. If
None, no messages are sent at all. In that case, the manager
cannot recognize if the slave job has crashed or been killed.</li>
</ul></dd>
<dt>Overrides:
object.__init__
</dt>
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